Characterization and heat transfer performance of quarternary nitrate based molten salts
The use of molten salts as heat transfer has become the preferable composition. It has excellent properties such as low melting points, high heat capacity, and a wide range of temperatures. This paper focuses on the characterization and heat transfer performance of quaternary nitrate based on...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Semarak Ilmu
2022
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7722/ http://eprints.uthm.edu.my/7722/1/J14743_d88f828b8daa62f021cce2c9eee67ad3.pdf |
| Summary: | The use of molten salts as heat transfer has become the preferable composition. It has
excellent properties such as low melting points, high heat capacity, and a wide range of
temperatures. This paper focuses on the characterization and heat transfer performance
of quaternary nitrate based on molten salts whose composition has been reported by
previous researchers. The quaternary molten salts (LiNO3, NaNO3, KNO3, Ca(NO3)2) were
characterized to determine the melting point and heat capacity using Thermogravimetric
Analysis (TGA) and Differential Scanning Calorimetry (DSC), respectively. The heat
transfer performance was then tested on the test rig of the designated system to
determine the heat transfer properties of molten salts. The composition of 10 wt% LiNO3,
10 wt% NaNO3, 40 wt% KNO3, 40 wt% Ca(NO3)2 has a low melting point of 97.7°C, high
heat capacity which was 0.46J/g°C, and maximum thermal stability temperature was
439.04°C. The heat transfer performance test showed that this sample can be used as
heat transfer fluid and can store energy in the system. In conclusion, quaternary nitrate�based molten salt is a promising candidate for heat transfer and energy storage in heat
recovery applications. |
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